Aquascape Dual Union 3″ Check Valve Assembly net The filter capacity can be

The filter capacity can be upgraded by adding an additional 20 liters of Hel-X Bio-media

For use with PS3900 Skimmer

MPN: 78324

Non-stick coated barrel

MPN: PSA5000

Aquascape Dual Union 3″ Check Valve Assembly net The filter capacity can beITEM # 29098 The Dual Union 3 CVA Check Valve effectively prevents backflow in ponds and water features while providing a professional pump and plumbing connection inside filters and waterfall vaults. The heavy duty check valve flapper is built to last and maximizes water flow through the valve when open while preventing the backflow of water when the pump is shut off or during a power outage. Union connections on both sides of the valve make pump and